JP7760722B2 - Aerosol Generator - Google Patents

Description

This disclosure relates to an aerosol generating device.

Aerosol generating devices are used to extract specific components from a medium or substance via an aerosol. The medium can contain a variety of substances. The substances contained in the medium can be flavoring substances with a variety of components. For example, the substances contained in the medium can include nicotine, herbal, and/or coffee components. In recent years, much research has been conducted into such aerosol generating devices.

This disclosure aims to solve the above-mentioned problems and other problems.

Another object of the present disclosure is to provide an aerosol generating device that can cut off the power supplied to the heater based on the remaining amount of aerosol generating material.

Another object of the present disclosure is to provide an aerosol generating device that can prevent the heater from overheating when there is insufficient aerosol generating material remaining.

According to one aspect of the means described in the present application, an aerosol generating device includes a housing, a heater that heats an aerosol generating material, a battery that supplies power to the heater, and a temperature switch that switches the electrical connection between the heater and the battery. The temperature switch includes a first switch terminal positioned to be electrically connected to a first heater terminal of the heater and a second switch terminal positioned to be electrically connected to a first battery terminal of the battery. When the temperature switch is heated to a first temperature or higher, it bends in one direction, and after the temperature switch bends in the one direction, the first switch terminal moves away from the first heater terminal, electrically isolating the connection between the first switch terminal and the first heater terminal.

According to another aspect of the means described in the present application, an aerosol generating device includes a heater that heats an aerosol generating material; a battery that supplies power to the heater and heats the aerosol generating material using the heater; a temperature switch that switches an electrical connection between the heater and the battery; and a housing that contains the heater, the battery, and the temperature switch. The temperature switch includes a first switch terminal that is electrically connected to a first heater terminal of the heater when the temperature switch is in a first orientation state, and a second switch terminal that is positioned to be electrically connected to a first battery terminal of the battery when the temperature switch is in the first orientation state. When the temperature switch is heated above a temperature threshold, the temperature switch bends toward the first orientation state, and as the temperature switch bends, the first switch terminal moves away from the first heater terminal, electrically isolating the connection between the first switch terminal and the first heater terminal.

According to at least one embodiment of the present disclosure, power supplied to the heater can be cut off based on the amount of aerosol-generating material remaining.

At least one embodiment of the present disclosure can prevent the heater from overheating if there is insufficient aerosol-generating material remaining.

Further scope of applicability of the present disclosure will become apparent from the following detailed description. However, since various changes and modifications within the spirit and scope of the present disclosure will be apparent to those skilled in the art, it should be understood that the detailed description and specific examples, such as preferred embodiments of the present disclosure, are given by way of example only.

FIG. 1 is a block diagram illustrating an example of an aerosol generating device. FIG. 1 is a diagram illustrating an example of an aerosol generating device. FIG. 1 is a diagram illustrating an example of an aerosol generating device. FIG. 1 is a diagram illustrating an example of an aerosol generating device. FIG. 10 is a diagram illustrating an example of a stick. FIG. 10 is a diagram illustrating an example of a stick. FIG. 10 is a diagram illustrating an example of a stick. 1A and 1B are diagrams illustrating examples of the structure of an aerosol generating device. FIG. 1 is a diagram illustrating an example of an aerosol generating device. FIG. 1 is a diagram illustrating an example of an aerosol generating device. FIG. 1 is a diagram illustrating an example of an aerosol generating device. FIG. 1 is a diagram illustrating an example of an aerosol generating device. FIG. 1 is a diagram illustrating an example of an aerosol generating device. FIG. 1 is a diagram illustrating an example of an aerosol generating device.

The embodiments disclosed in this specification will now be described in detail with reference to the accompanying drawings. Identical or similar components will be given the same reference numerals even if they are shown in different drawings, and duplicate descriptions thereof will be omitted.

The suffixes "module" and "section" used in the following description for components are used solely for ease of explanation. "Module" and "section" do not have distinct meanings or roles.

Furthermore, in the following description of the embodiments disclosed herein, detailed descriptions of related publicly known technologies will be omitted if they may obscure the gist of the embodiments disclosed herein. Furthermore, the attached drawings are intended to facilitate understanding of the embodiments disclosed herein, and do not limit the technical concepts disclosed herein. Therefore, the attached drawings should be interpreted as including all modifications, equivalents, and alternatives within the spirit and scope of the present disclosure.

Terms including ordinal numbers such as "first," "second," etc. may be used to describe various components, but it should be understood that the components are not limited by these terms. These terms are used solely to distinguish one component from another.

When a component is said to be "connected" to another component, it is understood that there may be other components in between. On the other hand, when a component is said to be "directly connected" to another component, it is understood that there are no other components in between.

Singular expressions include plural expressions unless the context clearly dictates otherwise.

Figure 1 is a block diagram of an aerosol generating device according to one embodiment of the present disclosure.

Referring to FIG. 1, the aerosol generating device 10 may include a communication interface 11, an input/output interface 12, an aerosol generating module 13, a memory 14, a sensor module 15, a battery 16, and/or a control unit 17.

In one embodiment, the aerosol generating device 10 may be composed of only the main body 100. In this case, the components included in the aerosol generating device 10 may be disposed in the main body 100. In another embodiment, the aerosol generating device 10 may be composed of the main body 100 and a cartridge 200 that stores the aerosol generating material. In this case, the components included in the aerosol generating device 10 may be disposed in at least one of the main body 100 and the cartridge 200.

The communication interface 11 may include at least one communication module for communication with an external device and/or network. For example, the communication interface 11 may include a communication module for wired communication such as USB (universal serial bus). For example, the communication interface 11 may include a communication module for wireless communication such as Wi-Fi (wireless fidelity), Bluetooth (registered trademark), Bluetooth (registered trademark) Low Energy (BLE), Zigbee (registered trademark), or NFC (near field communication).

The input/output interface 12 may include an input device that receives commands from a user and/or an output device that outputs information to a user. For example, the input device may include a touch panel, physical buttons, a microphone, etc. For example, the output device may include a display device that outputs visual information such as a display or light-emitting diode (LED), an audio device that outputs auditory information such as a speaker or buzzer, a motor that outputs tactile information such as a haptic effect, etc.

The input/output interface 12 can transmit data corresponding to commands input by a user via an input device to other components (etc.) of the aerosol generating device 10. The input/output interface 12 can output information corresponding to data received from other components (etc.) of the aerosol generating device 10 via an output device.

The aerosol generating module 13 can generate an aerosol from an aerosol generating material. Here, the aerosol generating material can refer to any one or a combination of two or more substances in various states, such as liquid, solid, or gel, that can generate an aerosol.

In one embodiment, the liquid aerosol-forming material may be a liquid containing a tobacco-containing substance, including a volatile tobacco flavor component. In another embodiment, the liquid aerosol-forming material may be a liquid containing a non-tobacco substance. For example, the liquid aerosol-forming material may include water, solvent, nicotine, plant extracts, flavorings, flavoring agents, vitamin mixtures, etc.

Solid-state aerosol-generating materials can include solid materials based on tobacco raw materials, such as reconstituted tobacco sheets, shredded tobacco, and granulated tobacco. Solid-state aerosol-generating materials can also include solid materials containing taste modifiers, seasonings, and the like. For example, taste modifiers can include calcium carbonate, sodium bicarbonate, calcium oxide, and the like. For example, seasonings can include natural substances such as herb granules, and silica, zeolite, dextrin, and the like containing fragrance ingredients.

The aerosol generating material may also contain an aerosol forming agent such as glycerin or propylene glycol.

The aerosol generation module 13 may include at least one heater 131.

The aerosol generation module 13 may include an electrical resistance heater. For example, the electrical resistance heater may include at least one electrically conductive track and may be heated by an electric current flowing through the electrically conductive track. Here, the aerosol generating material may be heated by the heated electrical resistance heater.

The electrically conductive track may include an electrically resistive material. As an example, the electrically conductive track may be formed from a metal material. As another example, the electrically conductive track may be formed from a ceramic material, carbon, a metal alloy, or a composite of a ceramic material and a metal.

An electric resistance heater may include an electrically conductive track formed in a variety of shapes. For example, the electrically conductive track may be formed in any one of the following shapes: tubular, plate-shaped, needle-shaped, rod-shaped, and coil-shaped.

The aerosol generation module 13 may include a heater that uses induction heating. For example, an induction heater may include an electrically conductive coil, and an alternating magnetic field whose direction periodically changes may be generated by adjusting the current flowing through the electrically conductive coil. When an alternating magnetic field is applied to a magnetic material, energy loss due to eddy current loss and hysteresis loss may occur in the magnetic material. The lost energy may be released as thermal energy, heating the aerosol-generating material adjacent to the magnetic material. Here, the object that generates heat due to the magnetic field may be referred to as a susceptor.

On the other hand, the aerosol generation module 13 can also generate aerosol from the aerosol-generating substance by generating ultrasonic vibrations.

The aerosol generation module 13 may be referred to as a cartomizer, atomizer, vaporizer, etc.

When the aerosol generating device 10 is composed of a cartridge 200 containing an aerosol generating substance and a main body 100, the aerosol generating module 13 may be disposed in at least one of the main body 100 and the cartridge 200.

Memory 14 can store programs for each signal processing and control within control unit 17, and can store data processed by control unit 17 and data to be processed.

For example, memory 14 may store application programs designed to perform various tasks that can be processed by control unit 17, and may selectively provide some of the stored application programs upon request from control unit 17.

For example, the memory 14 can store the operating time of the aerosol generating device 10, the maximum number of puffs, the current number of puffs, at least one temperature profile, data on the user's inhalation pattern, data on charging and discharging, etc. Here, puffing can refer to the user's inhalation, and inhalation can refer to the situation in which the user inhales through the mouth or nose into the user's oral cavity, nasal cavity, or lungs.

Memory 14 may include at least one of volatile memory (e.g., DRAM, SRAM, SDRAM, etc.) and non-volatile memory (e.g., flash memory, hard disk drive (HDD), solid-state drive (SSD), etc.).

The sensor module 15 may include at least one sensor.

For example, the sensor module 15 may include a sensor that detects puffs (hereinafter referred to as a "puff sensor"). Here, the puff sensor may be embodied as a proximity sensor such as an IR sensor, a pressure sensor, a gyro sensor, an acceleration sensor, a magnetic field sensor, etc.

For example, the sensor module 15 may include a sensor (hereinafter referred to as a temperature sensor) that detects the temperature of the heater 131 included in the aerosol generation module 13, the temperature of the aerosol generation material, etc.

Here, the heater 131 included in the aerosol generation module 13 may also function as a temperature sensor. For example, the electrically resistive material of the heater 131 may be a material having a temperature coefficient of resistance (TCR). The sensor module 15 can sense the temperature of the heater 131 by measuring the resistance of the heater 131, which changes depending on the temperature.

For example, if a stick can be inserted into the main body of the aerosol generating device 10, the sensor module 15 may include a sensor that detects the insertion of the stick (hereinafter referred to as a "stick detection sensor").

For example, if the aerosol generating device 10 includes a cartridge 200, the sensor module 15 may include a sensor (hereinafter referred to as a "cartridge detection sensor") that detects the attachment/detachment and position of the cartridge 200 relative to the main body 100.

Here, the stick detection sensor and/or cartridge detection sensor may be implemented using an inductance-based sensor, a capacitance-type sensor, a resistance sensor, a Hall sensor (Hall IC) using the Hall effect, etc. According to some embodiments of the present invention, the cartridge detection sensor may include a connection terminal. The connection terminal is provided on the main body 100, and may be electrically connected to an electrode provided on the cartridge 200 when the cartridge 200 is coupled to the main body 100. The connection terminal may also function as a cartridge detection sensor. For example, the sensor module 15 may detect the attachment/detachment of the cartridge 200 to/from the main body 100 based on the current flowing through the connection terminal, the voltage applied to the connection terminal, etc.

For example, the sensor module 15 may include a voltage sensor that detects the voltage applied to a component (e.g., battery 16) provided in the aerosol generating device 10 and/or a current sensor that detects the current.

For example, the sensor module 15 may include at least one sensor (hereinafter referred to as a motion sensor) that detects the movement of the aerosol generating device 10. Here, the motion sensor may be embodied by at least one of a gyro sensor and an acceleration sensor.

The battery 16 can supply power used to operate the aerosol generation device 10 under the control of the control unit 17. The battery 16 can also supply power to other components provided in the aerosol generation device 10. For example, the battery 16 can supply power to the communication module included in the communication interface 11, the output device included in the input/output interface 12, the heater 131 included in the aerosol generation module 13, etc.

Battery 16 may be a rechargeable battery or a disposable battery. For example, battery 16 may be, but is not limited to, a lithium-ion battery or a lithium polymer (Li-Polymer) battery. For example, if battery 16 is rechargeable, the charge rate (C-rate) of battery 16 may be, but is not limited to, 10C and the discharge rate (C-rate) may be 10C to 20C. Furthermore, for stable use, battery 16 may be manufactured to maintain 80% or more of its full capacity even after 2,000 charge/discharge cycles.

The aerosol generating device 10 may further include a battery protection circuit module (PCM), which is a circuit for protecting the battery 16. The battery protection module (PCM) may be disposed adjacent to the upper surface of the battery 16. For example, to prevent overcharging and over-discharging of the battery 16, the battery protection module (PCM) may cut off the electrical path to the battery 16 when a short circuit occurs in the circuit connected to the battery 16, when an overvoltage is applied to the battery 16, or when an overcurrent flows through the battery 16.

The aerosol generating device 10 may further include a charging terminal to which externally supplied power is input. For example, a charging terminal may be formed on one side of the body of the aerosol generating device 10, and the aerosol generating device 10 may charge the battery 16 using power supplied through the charging terminal. Here, the charging terminal may be a wired terminal for USB communication, a pogo pin, or the like.

The aerosol generation device 10 can also wirelessly receive power supplied from an external source via the communication interface 11. For example, the aerosol generation device 10 can receive power wirelessly using an antenna included in a communication module for wireless communication, and can charge the battery 16 using the wirelessly supplied power.

The control unit 17 can control the overall operation of the aerosol generation device 10. The control unit 17 is connected to each component provided in the aerosol generation device 10 and can transmit and/or receive signals between each component to control the overall operation of each component.

The control unit 17 may include at least one processor and may use the processor to control the overall operation of the aerosol generating device 10. Here, the processor may be a general processor such as a CPU (central processing unit). Of course, the processor may be a dedicated device such as an ASIC, or a processor based on other hardware.

The control unit 17 can perform any one of the multiple functions of the aerosol generation device 10. For example, the control unit 17 can execute any one of the multiple functions of the aerosol generation device 10 (e.g., preheating function, heating function, charging function, cleaning function, etc.) depending on the state of each component provided in the aerosol generation device 10, user commands received via the input/output interface 12, etc.

The control unit 17 can control the operation of each component of the aerosol generation device 10 based on the data stored in the memory 14. For example, the control unit 17 can control the battery 16 to supply a predetermined amount of power to the aerosol generation module 13 for a predetermined period of time based on data stored in the memory 14 about the temperature profile, the user's inhalation pattern, etc.

The control unit 17 can determine whether a puff has occurred using the puff sensor included in the sensor module 15. For example, the control unit 17 can check temperature changes, flow rate changes, pressure changes, voltage changes, etc. within the aerosol generating device 10 based on the sensing values of the puff sensor, and can determine whether a puff has occurred based on the confirmed results based on the sensing values of the puff sensor.

The control unit 17 can control the operation of each component of the aerosol generating device 10 depending on whether or not a puff is made and/or the number of puffs. For example, the control unit 17 can control the heater temperature to be changed or maintained based on the temperature profile stored in the memory 14.

The control unit 17 can control the heater 131 to cut off the power supply under certain conditions. For example, the control unit 17 can control the heater 131 to cut off the power supply when the stick is removed and the cartridge 200 is separated, when the number of puffs reaches a preset maximum number of puffs, when no puffs are detected for a preset time, or when the remaining charge of the battery 16 is less than a predetermined value.

The control unit 17 can calculate the remaining amount of power stored in the battery 16. For example, the control unit 17 can calculate the remaining amount of power in the battery 16 based on the sensing values of the voltage sensor and/or current sensor included in the sensor module 15.

The control unit 17 can control the supply of power to the heater 131 using at least one of a pulse width modulation (PWM) method and a proportional-integral-differential (PID) method.

For example, the control unit 17 can use a PWM method to control the supply of a current pulse having a predetermined frequency and duty ratio to the heater 131. Here, the control unit 17 can control the power supplied to the heater 131 by adjusting the frequency and duty ratio of the current pulse.

For example, the control unit 17 can determine a target temperature, which is the target for control, based on the temperature profile. Here, the control unit 17 can control the power supplied to the heater 131 using a PID method, which is a feedback control method that uses the difference between the temperature of the heater 131 and the target temperature, the value obtained by integrating the difference over time, and the value obtained by differentiating the difference over time.

For example, the control unit 17 can control the power supplied to the heater 131 based on the temperature profile. The control unit 17 can control the length of the heating section in which the heater 131 is heated, the amount of power supplied to the heater 131 during the heating section, etc. The control unit 17 can control the power supplied to the heater 131 based on the target temperature of the heater 131.

Meanwhile, while the PWM method and the PID method have been described as examples of control methods for supplying power to the heater 131, the present invention is not limited to these, and various control methods such as the Proportional-Integral (PI) method and the Proportional-Differential (PD) method can also be used.

The control unit 17 can determine the temperature of the heater 131 and adjust the power supplied to the heater 131 depending on the temperature of the heater 131. For example, the control unit 17 can determine the temperature of the heater 131 by checking the resistance value of the heater 131, the current flowing through the heater 131, and/or the voltage applied to the heater 131.

Meanwhile, the control unit 17 can control the heater 131 to supply power under preset conditions. For example, if a cleaning function for cleaning the space into which the stick is inserted is selected according to a command input by the user via the input/output interface 12, the control unit 17 can control the heater 131 to supply a predetermined amount of power.

Figures 2 to 4 are diagrams illustrating an aerosol generating device according to an embodiment of the present disclosure.

According to various embodiments of the present invention, the aerosol generating device 10 may include a main body 100 and/or a cartridge 200.

Referring to FIG. 2, an aerosol generating device 10 according to one embodiment may include a main body 100 configured to allow a stick 20 to be inserted into a space formed by a housing 101.

The stick 20 may be similar to a typical combustible cigarette. For example, the stick 20 may be divided into a first portion containing an aerosol-generating substance and a second portion containing a filter or the like. Alternatively, the second portion of the stick 20 may also contain an aerosol-generating substance. For example, the aerosol-generating substance manufactured in the form of granules or capsules may be inserted into the second portion.

The entire first part may be inserted into the aerosol generating device 10, and the second part may be exposed to the outside. Alternatively, only a portion of the first part, or both the first part and the second part, may be inserted into the aerosol generating device 10. A user can inhale the aerosol by holding the second part in their mouth. Here, the aerosol is generated when external air passes through the first part, and the generated aerosol can be delivered to the user's mouth by passing through the second part.

The main body 100 may be configured to allow external air to flow into the main body 100 when the stick 20 is inserted. Here, the external air that flows into the main body 100 can pass through the stick 20 and flow into the user's mouth.

The heater may be positioned within the body 100 at a location corresponding to the location where the stick 20 is inserted into the body 100. In this illustration, the heater is shown as an electrically conductive heater 110 including a needle-shaped electrically conductive track, but the present invention is not limited in this respect.

The heater can heat the inside and/or outside of the stick 20 using power supplied from the battery 16. An aerosol can then be generated from the heated stick 20. The user can then inhale the tobacco-flavored aerosol by inhaling through one end of the stick 20 with their mouth.

Meanwhile, the control unit 17 can control the heater to supply power even when the stick 20 is not inserted, depending on certain conditions. For example, if a cleaning function for cleaning the space into which the stick 20 is inserted is selected according to a command input by the user via the input/output interface 12, the control unit 17 can control the heater to supply a predetermined amount of power.

The control unit 17 can monitor the number of puffs based on the sensing value of the puff sensor from the moment the stick 20 is inserted.

When the inserted stick 20 is removed, the control unit 17 can initialize the current number of puffs stored in the memory 14.

Referring to FIG. 3, an aerosol generating device 100 according to one embodiment may include a main body 100 that supports a cartridge 200, and the cartridge 200 stores an aerosol-generating substance. The main body 100 may be configured so that a stick 20 can be inserted into the insertion space 130.

In one embodiment, the cartridge 200 may be configured to be detachable from the main body 100. In another embodiment, the cartridge 200 may be configured as an integral part of the main body 100. For example, the cartridge 200 may be attached to the main body 100 by inserting at least a portion of the cartridge 200 into the internal space formed by the housing 101 of the main body 100.

The main body 100 may be configured to allow external air to flow into the main body 100 when the cartridge 200 is inserted. Here, the external air that flows into the main body 100 can flow through the cartridge 200 to the user's mouth.

The control unit 17 can determine whether the cartridge 200 is attached or detached using the cartridge detection sensor included in the sensor module 15. For example, the cartridge detection sensor can transmit a pulse current through one terminal connected to the cartridge 200. Here, the cartridge detection sensor can detect whether the cartridge 200 is attached or detached based on whether the pulse current is received through another terminal.

The cartridge 200 may include a heater 210 for heating an aerosol-generating substance and/or a reservoir 220 for storing the aerosol-generating substance. For example, a liquid transfer means impregnated with (containing) the aerosol-generating substance may be disposed inside the reservoir 220. The electrically conductive track of the heater 210 may be formed in a structure that wraps around the liquid transfer means. Here, the liquid transfer means is heated by the heater 210, thereby generating an aerosol. Here, the liquid transfer means may include a wick made of cotton fiber, ceramic fiber, glass fiber, or porous ceramic.

The cartridge 200 may include an insertion space 230 configured to allow the stick 20 to be inserted. For example, the cartridge 200 may include an insertion space formed by an inner wall (not shown) extending circumferentially along the direction in which the stick 20 is inserted. Here, the insertion space may be formed by opening the inside of the inner wall upward and downward. The stick 20 may be inserted into the insertion space 230 formed by the inner wall.

The insertion space into which the stick 20 is inserted may be formed in a shape that corresponds to the shape of the portion of the stick 20 that will be inserted into the insertion space. For example, if the stick 20 is formed in a cylindrical shape, the insertion space may be formed in a cylindrical shape.

When the stick 20 is inserted into the insertion space, the outer periphery of the stick 20 is surrounded by the inner wall and may come into contact with the inner wall.

A portion of the stick 20 can be inserted into the insertion space 230 of the cartridge 200, with the remainder exposed to the outside.

The user can inhale the aerosol while holding one end of the stick 20 in their mouth. The aerosol generated by the heater 210 can pass through the stick 20 and be delivered to the user's mouth. As the aerosol passes through the stick 20, the substance contained in the stick 20 is added to the aerosol, and the aerosol with the added substance can be inhaled into the user's mouth through one end of the stick 20.

Referring to FIG. 4, an aerosol generating device 10 according to one embodiment may include a main body 100 that supports a cartridge 200, and the cartridge 200 holds an aerosol-generating substance. The main body 100 may be configured so that a stick 20 can be inserted into the insertion space 130.

The aerosol generating device 10 may include a first heater that heats the aerosol-generating material stored in the cartridge 200. For example, when a user inhales through one end of the stick 20 into their mouth, the aerosol generated by the first heater can pass through the stick 20. Here, as the aerosol passes through the stick 20, a flavor can be added to the aerosol. The flavored aerosol can be inhaled into the user's mouth through one end of the stick 20.

Meanwhile, in another embodiment, the aerosol generating device 10 may include a heater that heats the aerosol generating material stored in the cartridge 200 and a heater that heats the stick 20 inserted into the main body 100. For example, the aerosol generating device 100 may generate aerosol by using multiple heaters to heat the aerosol generating material stored in the cartridge 200 and the stick 20, respectively.

Figures 5 to 7 are diagrams illustrating a stick according to an embodiment of the present disclosure. Detailed explanations of content that overlaps with Figures 5 to 7 will be omitted.

Referring to FIG. 5, a stick 20 according to one embodiment may include a tobacco rod 21 and a filter rod 22. The first portion described above with reference to FIG. 2 may include the tobacco rod 21. The second portion described above with reference to FIG. 2 may include the filter rod 22.

Although FIG. 5 shows the filter rod 22 as a single segment, it is not limited to this. In other words, the filter rod 22 may be composed of multiple segments. For example, the filter rod 22 may include a first segment that cools the aerosol and a second segment that filters specific components contained in the aerosol. If necessary, the filter rod 22 may also include at least one additional segment that performs another function.

The diameter of the stick 20 may range from 5 mm to 9 mm, and the length may be approximately 48 mm, but is not limited to these. For example, the length of the tobacco rod 21 may be approximately 12 mm, the length of the first segment of the filter rod 22 may be approximately 10 mm, the length of the second segment of the filter rod 22 may be approximately 14 mm, and the length of the third segment of the filter rod 22 may be approximately 12 mm, but is not limited to these.

The stick 20 may be wrapped in at least one wrapper 24. The wrapper 24 may have at least one hole formed therein, allowing external air to enter or internal gas to escape. As an example, the stick 20 may be wrapped in a single wrapper 24. As another example, the stick 20 may be wrapped in two or more overlapping wrappers 24. For example, the tobacco rod 21 may be wrapped in a first wrapper 241. For example, the filter rod 22 may be wrapped in wrappers 242, 243, and 244. The tobacco rod 21 and filter rod 22 wrapped in individual wrappers may be combined, and the entire stick 20 may be further wrapped in a third wrapper. If each filter rod 22 is composed of multiple segments, each segment may be wrapped in an individual wrapper 242, 243, and 244. The entire stick 20, comprising the combined segments wrapped in individual wrappers, may be further wrapped in another wrapper.

The first wrapper 241 and the second wrapper 242 may be made from a typical filter wrapper. For example, the first wrapper 241 and the second wrapper 242 may be porous or non-porous wrapper. The first wrapper 241 and the second wrapper 242 may also be made from oil-resistant paper and/or aluminum laminate packaging material.

The third wrapper 243 may be made of hard wrapping paper. For example, the basis weight of the third wrapper 243 may be in the range of 88 g/ ^m to 96 g/ ^m . For example, the basis weight of the third wrapper 243 may be in the range of 90 g/ ^m to 94 g/ ^m . Also, the thickness of the third wrapper 243 may be in the range of 120 μm to 130 μm. For example, the thickness of the third wrapper 243 may be 125 μm.

The fourth wrapper 244 may be made of a grease-resistant hard wrapping paper. For example, the basis weight of the fourth wrapper 244 may be in the range of 88 g/ ^m to 96 g/ ^m . For example, the basis weight of the fourth wrapper 244 may be in the range of 90 g/ ^m to 94 g/ ^m . Also, the thickness of the fourth wrapper 244 may be in the range of 120 μm to 130 μm. For example, the thickness of the fourth wrapper 244 may be 125 μm.

The fifth wrapper 245 may be made of a sterilized paper (MFW). Here, sterilized paper (MFW) may refer to paper that is specially manufactured to have improved tensile strength, water resistance, smoothness, etc. compared to general paper. For example, the basis weight of the fifth wrapper 245 may be in the range of 57 g/m ² to 63 g/m ^2. For example, the basis weight of the fifth wrapper 245 may be 60 g/m ^2. Furthermore, the thickness of the fifth wrapper 245 may be in the range of 64 μm to 70 μm. For example, the thickness of the fifth wrapper 245 may be 67 μm.

The fifth wrapper 245 may contain a predetermined material. Here, an example of the predetermined material may be, but is not limited to, silicon. For example, silicon may have properties such as heat resistance (i.e., small changes due to temperature), oxidation resistance (i.e., no oxidation), resistance to various chemicals, water repellency, or electrical insulation. However, even if it is not silicon, any material having the above-mentioned properties may be applied or coated onto the fifth wrapper 245 without limitation.

The fifth wrapper 245 can prevent the stick 20 from burning. For example, when the tobacco rod 21 is heated by the heater 210, the stick 20 may burn. Specifically, if the temperature rises above the flash point of any one of the materials contained in the tobacco rod 21, the stick 20 may burn. Even in such cases, the fifth wrapper 245 contains a non-flammable material, preventing the stick 20 from burning.

In addition, the fifth wrapper 245 can prevent the main body 100 from being contaminated by the substance produced in the stick 20. A liquid substance can be produced within the stick 20 when the user puffs. For example, a liquid substance (e.g., water) can be produced when the aerosol produced in the stick 20 is cooled by external air. By encasing the stick 20 in the fifth wrapper 245, the liquid substance produced within the stick 20 can be prevented from leaking outside the stick 20.

The tobacco rod 21 may contain an aerosol-generating substance. For example, the aerosol-generating substance may include, but is not limited to, at least one of glycerin, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol. The tobacco rod 21 may also contain other additives such as flavoring agents, humectants, and/or organic acids. A flavoring liquid such as menthol or a humectant may also be added to the tobacco rod 21 by spraying it onto the tobacco rod 21.

The tobacco rod 21 can be manufactured in a variety of ways. For example, the tobacco rod 21 can be manufactured from a sheet. For example, the tobacco rod 21 can be manufactured from a strand. For example, the tobacco rod 21 can be manufactured from finely cut pieces of a tobacco sheet. For example, the tobacco rod 21 can be surrounded by a thermally conductive material. For example, the thermally conductive material can be, but is not limited to, a metal foil such as aluminum foil. For example, the thermally conductive material surrounding the tobacco rod 21 can uniformly distribute heat transferred to the tobacco rod 21 and improve thermal conductivity to the tobacco rod, thereby improving the tobacco taste. The thermally conductive material surrounding the tobacco rod 21 can function as a susceptor heated by an induction heater. Although not shown in the drawings, the tobacco rod 21 can further include an additional susceptor in addition to the thermally conductive material surrounding the exterior.

The filter rod 22 may be a cellulose acetate filter. However, there are no limitations on the shape of the filter rod 22. For example, the filter rod 22 may be a cylindrical type rod. For example, the filter rod 22 may be a tubular type rod having a hollow interior. For example, the filter rod 22 may be a recessed type rod. When the filter rod 22 is composed of multiple segments, at least one of the multiple segments may be manufactured in a different shape.

The first segment of the filter rod 22 may be a cellulose acetate filter. For example, the first segment may be a tubular structure with a hollow interior. The first segment prevents the internal material of the tobacco rod 21 from being pushed back when the heater 110 is inserted, and also provides a cooling effect for the aerosol. The diameter of the hollow interior of the first segment may be an appropriate diameter within the range of 2 mm to 4.5 mm, but is not limited to this.

The length of the first segment can be any suitable length within the range of 4 mm to 30 mm, but is not limited to this. For example, the length of the first segment can be 10 mm, but is not limited to this.

The second segment of the filter rod 22 cools the aerosol generated by the heater 110 heating the tobacco rod 21. This allows the user to inhale aerosol cooled to an appropriate temperature.

The length or diameter of the second segment can be determined in various ways depending on the shape of the stick 20. For example, the length of the second segment can be appropriately set within the range of 7 mm to 20 mm. Preferably, the length of the second segment can be approximately 14 mm, but is not limited to this.

The second segment can be made by weaving polymer fibers. In this case, a flavor liquid can be applied to the fibers made from the polymer. Alternatively, the second segment can be made by weaving together separate fibers coated with a flavor liquid and fibers made from the polymer. Alternatively, the second segment can be formed from a crimped polymer sheet.

For example, the polymer may be made from a material selected from the group consisting of polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polyethylene terephthalate (PET), polylactic acid (PLA), cellulose acetate (CA), and aluminum foil.

When the second segment is formed from woven polymer fibers or a crimped polymer sheet, the second segment can include one or more channels extending in the longitudinal direction. Here, a channel can refer to a passage through which a gas (e.g., air or aerosol) passes.

For example, the second segment of the crimped polymer sheet can be formed from a material having a thickness between about 5 μm and about 300 μm, e.g., between about 10 μm and about 250 μm, and the total surface area of the second segment can be between about 300 ^mm /mm and about 1000 ^mm /mm, and the aerosol cooling element can be formed from a material having a specific surface area between about 10 ^mm /mg and about 100 ^mm /mg.

Meanwhile, the second segment may include a thread containing a volatile flavor component. Here, the volatile flavor component may be, but is not limited to, menthol. For example, the thread may be loaded with a sufficient amount of menthol to provide 1.5 mg or more of menthol to the second segment.

The third segment of the filter rod 22 may be a cellulose acetate filter. The length of the third segment may be appropriately within the range of 4 mm to 20 mm. For example, the length of the third segment may be approximately 12 mm, but is not limited to this.

The filter rod 22 may be manufactured to emit a flavor. For example, a flavoring liquid may be sprayed onto the filter rod 22. For example, a separate fiber coated with a flavoring liquid may be inserted into the filter rod 22.

The filter rod 22 may also include at least one capsule 23. Here, the capsule 23 may function to generate a flavor. The capsule 23 may also function to generate an aerosol. For example, the capsule 23 may have a structure in which a liquid containing a flavoring agent is enclosed in a coating. The capsule 23 may have, but is not limited to, a spherical or cylindrical shape.

Referring to FIG. 6, the stick 30 according to one embodiment may further include a front end plug 33. The front end plug 33 may be disposed on the opposite side of the tobacco rod 31 from the filter rod 32. The front end plug 33 may prevent the tobacco rod 31 from detaching to the outside. The front end plug 33 may prevent aerosol liquefied from the tobacco rod 31 during smoking from flowing into the aerosol generating device 100.

The filter rod 32 may include a first segment 321 and a second segment 322. The first segment 321 may correspond to the first segment of the filter rod 22 in FIG. 4. The second segment 322 may correspond to the third segment of the filter rod 22 in FIG. 4.

The diameter and overall length of the stick 30 may correspond to the diameter and overall length of the stick 20 in Figure 4. For example, but not limited to, the length of the front end plug 33 may be approximately 7 mm, the length of the tobacco rod 31 may be approximately 15 mm, the length of the first segment 321 may be approximately 12 mm, and the length of the second segment 322 may be approximately 14 mm.

The stick 30 may be wrapped in at least one wrapper 35. The wrapper 35 may have at least one hole formed therein through which external air can enter or internal gas can escape. For example, the front end plug 33 may be wrapped in a first wrapper 351, the tobacco rod 31 may be wrapped in a second wrapper 352, the first segment 321 may be wrapped in a third wrapper 353, and the second segment 322 may be wrapped in a fourth wrapper 354. The entire stick 30 may then be rewrapped in a fifth wrapper 355.

Furthermore, at least one perforation 36 may be formed in the fifth wrapper 355. For example, the perforation 36 may be formed in the area surrounding the tobacco rod 31, but is not limited to this. For example, the perforation 36 may serve to transfer heat generated by the heater 210 shown in FIG. 2 to the interior of the tobacco rod 31.

The second segment 322 may also include at least one capsule 34. Here, the capsule 34 may function to generate a flavor. The capsule 34 may also function to generate an aerosol. For example, the capsule 34 may have a structure in which a liquid containing a flavoring agent is enclosed in a coating. The capsule 34 may have, but is not limited to, a spherical or cylindrical shape.

The first wrapper 351 may be formed by bonding a metal foil, such as aluminum foil, to a typical filter wrapper. For example, the total thickness of the first wrapper 351 may be in the range of 45 μm to 55 μm. For example, the total thickness of the first wrapper 351 may be 50.3 μm. The thickness of the metal foil of the first wrapper 351 may be in the range of 6 μm to 7 μm. For example, the thickness of the metal foil of the first wrapper 351 may be 6.3 μm. The basis weight of the first wrapper 351 may be in the range of 50 g/m ² to 55 g/m ^2. For example, the basis weight of the first wrapper 351 may be 53 g/m ² .

The second wrapper 352 and the third wrapper 353 may be made from a typical filter wrapper. For example, the second wrapper 352 and the third wrapper 353 may be a porous wrapper or a non-porous wrapper.

For example, the porosity of the second wrapper 352 may be, but is not limited to, 35,000 CU. The thickness of the second wrapper 352 may be in the range of 70 μm to 80 μm. For example, the thickness of the second wrapper 352 may be 78 μm. The basis weight of the second wrapper 352 may be in the range of 20 g/ ^m to 25 g/ ^m . For example, the basis weight of the second wrapper 352 may be 23.5 g/ ^m .

For example, the porosity of the third wrapper 353 may be, but is not limited to, 24,000 CU. The thickness of the third wrapper 353 may be in the range of 60 μm to 70 μm. For example, the thickness of the third wrapper 353 may be 68 μm. The basis weight of the third wrapper 353 may be in the range of 20 g/ ^m to 25 g/ ^m . For example, the basis weight of the third wrapper 353 may ^be 21 g/m.

The fourth wrapper 354 may be made of PLA laminated paper. Here, PLA laminated paper may refer to a triple-ply paper including a paper layer, a PLA layer, and another paper layer. For example, the thickness of the fourth wrapper 354 may be in the range of 100 μm to 120 μm. For example, the thickness of the fourth wrapper 354 may be 110 μm. Furthermore, the basis weight of the fourth wrapper 354 may be in the range of 80 g/ ^m to 100 g/ ^m . For example, the basis weight of the fourth wrapper 354 may be 88 g/ ^m .

The fifth wrapper 355 may be made of a sterilized paper (MFW). Here, sterilized paper (MFW) refers to paper that is specially manufactured to have improved tensile strength, water resistance, smoothness, etc. compared to general paper. For example, the basis weight of the fifth wrapper 355 may be in the range of 57 g/m ² to 63 g/m ^2. For example, the basis weight of the fifth wrapper 355 may be 60 g/m ^2. Furthermore, the thickness of the fifth wrapper 355 may be in the range of 64 μm to 70 μm. For example, the thickness of the fifth wrapper 355 may be 67 μm.

The fifth wrapper 355 may contain a predetermined material. Here, an example of the predetermined material may be, but is not limited to, silicon. For example, silicon has properties such as heat resistance (i.e., small changes due to temperature), oxidation resistance (i.e., no oxidation), resistance to various chemicals, water repellency, and electrical insulation. However, even if it is not silicon, any material having the above-mentioned properties may be applied (or coated) to the fifth wrapper 355 without limitation.

The front end plug 33 may be made from cellulose acetate. For example, the front end plug 33 may be made by adding a plasticizer (e.g., triacetin) to cellulose acetate toe. The mono-denier of the filaments constituting the cellulose acetate toe may range from 1.0 to 10.0. For example, the mono-denier of the filaments constituting the cellulose acetate toe may range from 4.0 to 6.0. For example, the mono-denier of the filaments constituting the front end plug 33 may be 5.0. The cross section of the filaments constituting the front end plug 33 may be Y-shaped. The total denier of the front end plug 33 may range from 20,000 to 30,000. For example, the total denier of the front end plug 33 may range from 25,000 to 30,000. For example, the total denier of the front end plug 33 may be 28,000.

Optionally, the front end plug 33 may also include at least one channel. The cross section of the channel may be manufactured in a variety of shapes.

The tobacco rod 31 may correspond to the tobacco rod 21 described above with reference to Figure 5. Therefore, a detailed description of the tobacco rod 31 will be omitted below.

The first segment 321 may be made from cellulose acetate. For example, the first segment may be a tube-shaped structure having a hollow interior. The first segment 321 may be made by adding a plasticizer (e.g., triacetin) to cellulose acetate. For example, the mono-denier and total denier of the first segment 321 may be the same as the mono-denier and total denier of the front end plug 33.

The second segment 322 may be made of cellulose acetate. The mono-denier of the filaments constituting the second segment 322 may be in the range of 1.0 to 10.0. For example, the mono-denier of the filaments of the second segment 322 may be in the range of 8.0 to 10.0. For example, the mono-denier of the filaments of the second segment 322 may be 9.0. The cross section of the filaments of the second segment 322 may be Y-shaped. The total denier of the second segment 322 may be in the range of 20,000 to 30,000. For example, the total denier of the second segment 322 may be 25,000.

Referring to FIG. 7, the stick 40 may include a medium portion 410. The stick 40 may include a cooling portion 420. The stick 40 may include a filter portion 430.

The cooling section 420 may be disposed between the medium section 410 and the filter section 430. The stick 40 may include a wrapper 440. The wrapper 440 may encase the medium section 410. The wrapper 440 may encase the cooling section 420. The wrapper 440 may encase the filter section 430. The stick 40 may have a cylindrical shape.

The medium portion 410 may include a medium 411. The medium portion 410 may include a first support portion 413. The medium portion 410 may include a second support portion 415. The medium 411 may be disposed between the first support portion 413 and the second support portion 415. The first support portion 413 may be disposed at one end of the stick 40. The length of the medium portion 410 may be 24 mm.

The medium 411 may contain various substances. The substances contained in the medium may be flavor substances with various ingredients. The medium 411 may be composed of a plurality of granules. Each of the granules may have a size of 0.4 mm to 1.12 mm. The medium 411 may be filled with the granules approximately 70% of the interior. The length L2 of the medium 411 may be 10 mm. The first support portion 413 may be composed of a paper material. The second support portion 415 may be composed of a paper material. The first support portion 413 may be composed of an acetate material. The second support portion 415 may be composed of an acetate material. The first support portion 413 may be composed of an acetate material. The second support portion 415 may be composed of an acetate material. At least one of the first support portion 413 and the second support portion 415 may be composed of a paper material and have a wrinkled shape, forming a plurality of gaps between them for air to flow through. The gaps may be smaller than the size of each granule of the medium 411. The length L1 of the first support portion 413 may be shorter than the length L2 of the medium 411. The length L3 of the second support portion 413 may be shorter than the length L2 of the medium 411. The length L1 of the first support portion 413 may be 7 mm. The length L2 of the second support portion 413 may be 7 mm.

Therefore, each granule of the medium 411 cannot detach from the medium portion 410 and the stick 40.

The cooling portion 420 may have a cylindrical shape. The cooling portion 420 may have a hollow shape. The cooling portion 420 may be disposed between the medium portion 410 and the filter portion 430. The cooling portion 420 may be disposed between the second support portion 415 and the filter portion 430. The cooling portion 420 may be formed in a tubular shape surrounding the cooling passage 424 therein. The cooling portion 420 may be thicker than the wrapper 440. The cooling portion 420 may be made of a paper material that is thicker than the wrapper 440. The length L4 of the cooling portion 420 may be the same as or approximately the same as the length L2 of the medium 411. The length L4 of the cooling portion 420 and the cooling passage 424 may be 10 mm. When the stick 40 is inserted into the aerosol generation device 10, at least a portion of the cooling portion 420 may be exposed to the outside of the aerosol generation device 10.

Therefore, the cooling unit 420 supports the medium unit 410 and the filter unit 430, ensuring the rigidity of the stick 40. The cooling unit 420 also supports the wrapper 440 between the medium unit 410 and the filter unit 430, ensuring a location where the wrapper 440 is adhered. Furthermore, the heated air and aerosol can be cooled as they pass through the cooling passage 424 inside the cooling unit 420.

The filter part 430 may be composed of an acetate filter. The filter part 430 may be disposed at the other end of the stick 40. When the stick 40 is inserted into the aerosol generating device 10, the filter part 430 may be exposed to the outside of the aerosol generating device 10. A user may hold the filter part 430 in their mouth and inhale air. The length L5 of the filter part 430 may be 14 mm.

The wrapper 440 may wrap or surround the medium portion 410, the cooling portion 420, and the filter portion 430. The wrapper 440 may form the outer shape of the stick 40. The wrapper 440 may be made of a paper material. The adhesive portion 441 may be formed on one side edge of the wrapper 440. The wrapper 440 wraps the medium portion 410, the cooling portion 420, and the filter portion 430, and the adhesive portion 441 formed on one side edge and the other side edge may be adhered to each other. The wrapper 440 that wraps the medium portion 410, the cooling portion 420, and the filter portion 430 does not have to cover one end and the other end of the stick 40.

Therefore, the wrapper 440 can secure the medium section 410, the cooling section 420, and the filter section 430, preventing them from coming off the stick 40.

The first thin film 443 may be disposed at a position corresponding to the first support portion 413. The first thin film 443 may be disposed between the wrapper 440 and the first support portion 413, or may be disposed outside the wrapper 440. The first thin film 443 may surround the first support portion 413. The first thin film 443 may be made of a metal material. The first thin film 443 may be made of an aluminum material. The first thin film 443 may be adhered to or coated on the wrapper 440.

The second thin film 445 may be disposed at a position corresponding to the second support portion 415. The second thin film 445 may be disposed between the wrapper 440 and the second support portion 415, or may be disposed outside the wrapper 440. The second thin film 445 may be made of a metal material. The second thin film 445 may be made of an aluminum material. The second thin film 445 may be adhered to or coated on the wrapper 440.

Figure 8 is a diagram showing the structure of an aerosol generating device according to one embodiment of the present disclosure, and Figures 9 and 10 are diagrams illustrating an aerosol generating device according to one embodiment of the present disclosure.

Referring to Figures 8 to 10, the aerosol generating device 10 may include a chamber C1, a heater 131, a battery 16, and a temperature switch 50.

A chamber C1 containing an aerosol-generating substance may be formed within the housing 101 of the aerosol generating device 10. One side of the chamber C1 may include a flow path that communicates with the chamber C1 and allows the aerosol-generating substance to flow. A wick (not shown) impregnated with (containing) the aerosol-generating substance may be included within the flow path. The aerosol-generating substance within the chamber C1 may be impregnated into the wick. For example, the wick may include cotton fiber, ceramic fiber, glass fiber, porous ceramic, etc.

The heater 131 may include a coil 1313 surrounding the wick, a first heater terminal 1311 connected to one end of the coil 1313, and a second heater terminal 1312 connected to the other end of the coil 1313. The heater 131 may be disposed adjacent to one end of the chamber C1. The heater 131 may flow into the wick within the chamber C1 to heat the aerosol-generating material impregnated in the wick.

The battery 16 is electrically connected to the heater 131 and can supply power to the heater 131. The battery 16 can include a first battery terminal 161 and a second battery terminal 162. The first battery terminal 161 and the second battery terminal 162 are electrically connected to both ends of the coil 1313 of the heater 131, respectively, and the voltage between the first battery terminal 161 and the second battery terminal 162 is applied to both ends of the coil 1313, thereby supplying power from the battery 16 to the heater 131.

The temperature switch 50 may be electrically connected to the heater 131 and the battery 16.

Referring to FIG. 9, the temperature switch 50 may be electrically connected to the heater 131 and the battery 16. The temperature switch 50 has an elongated shape and may have switch terminals at both longitudinal ends. The temperature switch 50 may have a first switch terminal 53 at one longitudinal end and a second switch terminal 54 at the other longitudinal end. The first switch terminal 53 of the temperature switch 50 may contact (electrically connect to) the first heater terminal 1311. The second switch terminal 54 may be electrically connected to the first battery terminal 161 of the battery 16.

The first switch terminal 53 of the temperature switch 50 may be disposed within the housing 101 in the form of a free end that can contact and be separated from the first heater terminal 1311. The second switch terminal 54 of the temperature switch 50 may be electrically connected to the first battery terminal 161 and may be fixed within the housing 101.

Referring to FIG. 10, the first switch terminal 53 of the thermal switch 50 may be disposed adjacent to the coil 1313 of the heater 131. When power is supplied from the battery 16 to the heater 131 and the heater 131 heats up, the thermal switch 50 may heat up along with the heater. The thermal switch 50 may be heated to the temperature of the coil 1313 or a temperature close to this temperature. The thermal switch 50 may bend in one direction as the temperature of the thermal switch 50 increases. For example, when the thermal switch 50 is heated to a first temperature (temperature threshold) or higher, the thermal switch 50 may bend in one direction. Here, the first temperature may be determined by the metal components constituting the thermal switch 50.

As the temperature switch 50 bends in one direction, the first switch terminal 53 can be separated from the first heater terminal 1311. The first switch terminal 53 can be electrically isolated from the first heater terminal 1311.

The temperature switch 50 may include two or more metal plates. For example, the temperature switch 50 may include a first plate 51 including a first metal and a second plate 52 including a second metal. The first plate 51 may be formed of the first metal, and the second plate may be formed of the second metal. One side of the first plate 51 and one side of the second plate 52 may be in contact with each other.

Both ends of the first plate 51 may be connected to the first switch terminal 53 and the second switch terminal 54, and both ends of the second plate 52 in contact with the first plate 51 may be connected to the first switch terminal 53 and the second switch terminal 54. For example, the first switch terminal 53 and the second switch terminal 54 may be electrically connected to both ends of the first plate 51 and the second plate 52 and may be formed from either the first metal or the second metal constituting the first plate 51 and the second plate 52. Meanwhile, the first switch terminal 53 and the second switch terminal 54 may be part of the first plate 51 and/or the second plate 52. In this case, one end of the first plate 51 or one end of the second plate 52 may be the first switch terminal 53, and the other end of the first plate 51 or the other end of the second plate 52 may be the second switch terminal 54.

The first metal and the second metal may have different thermal expansion coefficients. For example, the thermal expansion coefficient of the first metal may be greater than the thermal expansion coefficient of the second metal. For example, the thermal expansion coefficient of the first metal may be smaller than the thermal expansion coefficient of the second metal.

For example, the first metal may be copper (Cu) and the second metal may be iron (Fe). For example, the first metal may be an alloy of nickel (Ni), iron (Fe) and manganese (Mn), or an alloy of nickel (Ni), iron (Fe) and molybdenum (Mo), or an alloy of nickel (Ni), manganese (Mn) and copper (Cu), and the second metal may be an alloy of nickel (Ni) and iron (Fe). However, the types of the first metal and second metal are not limited to these.

When the temperature of the thermal switch 50 rises, the first plate 51 and the second plate 52 expand to different degrees, allowing the thermal switch 50 to bend in one direction. For example, if the thermal expansion coefficient of the first metal is greater than that of the second metal, the temperature rise may cause the thermal switch 50 to bend in the direction of the second plate 52. For example, if the thermal expansion coefficient of the first metal is smaller than that of the second metal, the temperature rise may cause the thermal switch 50 to bend in the direction of the first plate 51.

The first temperature may be a temperature higher than the vaporization temperature of the aerosol-generating substance. When the first switch terminal 53 of the temperature switch 50 is in contact with the first heater terminal 1311, the heater 131 can be heated by receiving power from the battery 16. The heater 131 can be heated to a temperature higher than the vaporization temperature of the aerosol-generating substance. When the heater 131 is heated to a temperature higher than the vaporization temperature of the aerosol-generating substance, the aerosol-generating substance in the wick can be vaporized by the heat of the heater 131.

The first temperature may be equal to or lower than the set temperature. Here, the set temperature may be the temperature of the heater 131 when all of the aerosol-generating material impregnated in the wick has evaporated and been depleted. The set temperature may be higher than the evaporation temperature of the aerosol-generating material. If all of the aerosol-generating material contained in the wick is evaporated without additional aerosol-generating material being supplied to the wick, the temperature of the heater 131 may rise rapidly. Therefore, the set temperature may be set to the temperature at which the temperature of the heater 131 begins to rise after all of the aerosol-generating material contained in the wick has evaporated. For example, the set temperature may be 5 or 10 degrees higher than the evaporation temperature of the aerosol-generating material. However, the set temperature is not limited to this and may be set based on experimental data, etc.

The temperature switch 50 switches the electrical connection between the heater 131 and the battery 16 based on the first temperature, thereby heating the heater 131 to a temperature at or above the vaporization temperature of the aerosol-generating substance, thereby vaporizing the aerosol-generating substance.

In addition, if the aerosol-generating material is depleted and the heater 131 is heated to a temperature (first temperature) that is a certain level higher than the vaporization temperature of the aerosol-generating material, the electrical connection between the heater 131 and the battery 161 can be cut off to prevent the heater from overheating.

Figures 11 and 12 are diagrams illustrating an aerosol generating device according to one embodiment of the present disclosure. Detailed explanations of content that overlaps with the content explained in Figures 9 and 10 will be omitted.

Referring to Figures 11 and 12, a fuse 60 may be electrically connected between the second heater terminal 1312 of the heater 131 and the second battery terminal 162 of the battery 16. Both ends of the fuse 60 may be connected to the second heater terminal 1312 and the second battery terminal 162, respectively. A first end of the fuse 60 may be connected to the second heater terminal 1312, and a second end of the fuse 60 may be connected to the second battery terminal 162.

The heater 131 may include a third heater terminal 1314. The third heater terminal 1314 may be electrically connected to the second heater terminal 1312. For example, the third heater terminal 1314 may be connected to the second heater terminal 1312 via a conductor. For example, the third heater terminal 1314 may be connected to the second heater terminal 1312 via a PCB circuit pattern.

The third heater terminal 1314 may be positioned adjacent to the first switch terminal 53 of the thermal switch 50.

Referring to FIG. 11, at temperatures below the first temperature, the first switch terminal 53 of the temperature switch 50 can contact the first heater terminal 1311.

Referring to FIG. 12, the thermal expansion coefficient of the first metal constituting the first plate 51 of the thermal switch 50 may be greater than the thermal expansion coefficient of the second metal constituting the second plate 52. In this case, when the thermal switch 50 is heated to a temperature above the first temperature, the thermal switch 50 bends in one direction, causing the first switch terminal 53 to come into contact with the third heater terminal 1314 and become electrically connected to the third heater terminal 1314.

The fuse 60 can be electrically opened when the current flowing through the fuse 60 is equal to or greater than a predetermined value. The threshold current at which the fuse 60 electrically opens can be referred to as the breaking current. For example, the fuse 60 can be opened when a current greater than the breaking current flows. When the fuse 60 opens, both ends of the fuse 60 can be permanently electrically separated.

When the first switch terminal 53 of the thermal switch 50 is electrically connected to the first heater terminal 1311 at a temperature below the first temperature, a first closed loop can be formed in which the battery 16, thermal switch 50, heater 131, and fuse 60 are connected in series.

When the first switch terminal 53 of the thermal switch 50 is electrically connected to the third heater terminal 1314 at a temperature equal to or higher than the first temperature, a second closed loop can be formed in which the battery 16, thermal switch 50, and fuse 60 are connected in series.

In the first closed loop, a current smaller than the breaking current can flow through the fuse 60. In the second closed loop, a current equal to or greater than the breaking current can flow through the fuse 60. Compared to the first closed loop, the second closed loop does not have resistance due to the heater 131, so the current flowing through the second closed loop can be greater than the current flowing through the first closed loop.

When the first switch terminal 53 is electrically connected to the third heater terminal 1314, a current greater than the cut-off current can flow through the fuse 60. As a result, the fuse 60 is electrically opened, the heater 131 is electrically isolated (opened) from the battery 16, and the power supplied to the heater 131 from the battery 16 can be cut off.

If the fuse 60 is electrically open, the heater 131 and battery 16 will not be electrically connected unless the fuse 60 is replaced. Therefore, even if the temperature of the thermal switch 50 drops below the first temperature, the heater 131 remains electrically isolated from the battery 16, and the power supplied to the heater 131 from the battery 16 can be cut off.

Meanwhile, a fuse 60 and a protective resistor 70 may be electrically connected between the second heater terminal 1312 of the heater 131 and the second battery terminal 162 of the battery 16. The fuse 60 and the protective resistor 70 may be connected in series between the second heater terminal 1312 and the second battery terminal 162.

When the first switch terminal 53 of the thermal switch 50 is electrically connected to the first heater terminal 1311 at a temperature below the first temperature, a third closed loop can be formed in which the battery 16, thermal switch 50, heater 131, fuse 60, and protective resistor 70 are connected in series.

When the first switch terminal 53 of the thermal switch 50 is electrically connected to the third heater terminal 1314 at a temperature equal to or higher than the first temperature, a fourth closed loop can be formed in which the battery 16, thermal switch 50, fuse 60, and protective resistor 70 are connected in series.

In the third closed loop, a current smaller than the breaking current can flow through the fuse 60. In the fourth closed loop, a current equal to or greater than the breaking current can flow through the fuse 60.

If only the thermal switch 50 and fuse 60 were connected to the battery 16 in the second closed loop described above, the magnitude of the current flowing through the second closed loop could be greater than necessary. In this case, a fuse 60 with a high breaking current would have to be used, which could damage the battery 16. Therefore, in the fourth closed loop, a protective resistor 70 is further connected in series with the fuse 60, and the magnitude of the current flowing through the fourth closed loop can be set within an appropriate range depending on the size of the protective resistor 70.

Figures 13 and 14 are diagrams illustrating an aerosol generating device according to one embodiment of the present disclosure. Detailed explanations of content that overlaps with the content explained in Figures 9 and 10 will be omitted.

Referring to Figures 13 and 14, a first adhesive portion 55 may be provided on one side of the temperature switch 50. For example, the first plate 51 of the temperature switch 50 may be disposed adjacent to one side of the housing 101, and the first adhesive portion 55 may be provided on the surface of the first plate 51 adjacent to the one side of the housing 101. The first adhesive portion 55 may be coated with or contain adhesive.

A second adhesive portion 111 may be provided on one side of the housing 101. A second adhesive portion 111 may be provided on the surface of the housing 101 disposed adjacent to the first plate 51. The second adhesive portion 111 may be provided at a position corresponding to the position where the first adhesive portion 55 is provided, based on the longitudinal direction of the temperature switch 50 (the direction from the first heater terminal 1311 toward the first battery terminal 161).

The second adhesive portion 111 may be coated with or contain adhesive. The portion of the second adhesive portion 111 coated with or containing adhesive may be positioned opposite the portion of the first adhesive portion 55 coated with or containing adhesive.

The thermal expansion coefficient of the first metal of the first plate 51 of the temperature switch 50 may be smaller than the thermal expansion coefficient of the second metal of the second plate 52. In this case, when the temperature switch 50 is heated to a temperature equal to or higher than the first temperature, the temperature switch 50 bends in the direction in which the second adhesive portion 111 is disposed, allowing the first adhesive portion 55 and the second adhesive portion 111 to come into contact.

When the temperature switch 50 is heated to a temperature above the first temperature, the first adhesive portion 55 and the second adhesive portion 111 come into contact, and the temperature switch 50 can be fixed in contact with one side of the housing 101. Therefore, even if the temperature of the temperature switch 50 drops below the first temperature, the heater 131 remains electrically isolated (open) from the battery 16, and the power supplied to the heater 131 from the battery 16 can be cut off.

As mentioned above, according to at least one embodiment of the present disclosure, power supplied to the heater can be cut off based on the amount of aerosol-generating material remaining.

At least one embodiment of the present disclosure can prevent the heater from overheating if there is insufficient aerosol-generating material remaining.

1 to 14, an aerosol generating device 10 according to one aspect of the present disclosure may include a housing 101, a heater 131 for heating an aerosol generating material, a battery 16 for supplying power to the heater 131, and a temperature switch 50 for switching the electrical connection between the heater 131 and the battery 16. The temperature switch 50 includes a first heater terminal 1311 positioned to be electrically connected to the first heater terminal 1311 of the heater 131 and a second switch terminal 54 positioned to be electrically connected to the first battery terminal 161 of the battery 16. The temperature switch 50 may bend in one direction when heated to a first temperature or higher. After the temperature switch 50 bends in the one direction, the first switch terminal 53 may be separated from the first heater terminal 1311, thereby electrically isolating the connection between the first switch terminal 53 and the first heater terminal 1311.

According to another aspect of the present disclosure, the first temperature may be greater than the vaporization temperature of the aerosol-forming material.

According to another aspect of the present disclosure, the thermal switch 50 may include a first plate 51 including a first metal and extending in a direction from the first battery terminal 161 toward the first heater terminal 1311, and a second plate 52 including a second metal and having one surface in contact with one surface of the first plate 51. The thermal expansion coefficient of the first metal may be different from the thermal expansion coefficient of the second metal.

According to another aspect of the present disclosure, the aerosol generating device 10 may further include a fuse 60 having a first end and a second end. The heater 131 may include a coil 1313 having one end connected to the first heater terminal 1311 and a second heater terminal 1312 connected to the other end of the coil 1313. The battery 16 may include the second battery terminal 162. The first end of the fuse 60 may be connected to the second heater terminal 1312, and the second end of the fuse 60 may be connected to the second battery terminal 162.

According to another aspect of the present disclosure, the heater 131 may further include a third heater terminal 1314 electrically connected to the second heater terminal 1312 and disposed adjacent to the first switch terminal 53.

According to another aspect of the present disclosure, the thermal expansion coefficient of the first metal may be greater than the thermal expansion coefficient of the second metal. When the temperature switch 50 is heated to or above the first temperature, the temperature switch 50 bends in one direction, thereby allowing the first switch terminal 53 to electrically contact and be electrically connected to the third heater terminal 1314.

According to another aspect of the present disclosure, the fuse 60 can be electrically opened when a current greater than the cut-off current flows. When the first switch terminal 53 is electrically connected to the third heater terminal 1314, a current greater than the cut-off current can flow through the fuse 60.

According to another aspect of the present disclosure, the aerosol generating device 10 may further include a protective resistor 70. The fuse 60 and the protective resistor 70 may be connected in series between the second heater terminal 1312 and the second battery terminal 162.

According to another aspect of the present disclosure, the thermal expansion coefficient of the first metal may be smaller than the thermal expansion coefficient of the second metal. A first adhesive portion 55 may be provided on at least a portion of the other surface of the first plate 51.

According to another aspect of the present disclosure, the housing 101 may include a second adhesive portion 111 on one side disposed adjacent to the other side of the first plate 51. When the temperature switch 50 is heated to a first temperature or higher, the temperature switch 50 bends in the direction in which the second adhesive portion 111 is disposed, thereby allowing the first adhesive portion 55 and the second adhesive portion 111 to come into contact with each other.

An aerosol generating device 10 according to another aspect of the present disclosure includes a heater 131 for heating an aerosol generating material, a battery 16 for supplying power to the heater 131 and heating the aerosol generating material via the heater 131, a temperature switch 50 for switching the electrical connection between the heater 131 and the battery 16, and a housing 101 containing the heater 131, the battery 16, and the temperature switch 50, wherein the temperature switch 50 is configured to connect a first heater terminal of the heater 131 to a first heater terminal when the temperature switch 50 is in a first orientation state. The thermal switch 50 includes a first switch terminal 53 electrically connected to the first heater terminal 1311, and a second switch terminal 54 positioned to be electrically connected to the first battery terminal 161 of the battery 16 when the thermal switch 50 is in the first orientation. When the thermal switch 50 is heated above a temperature threshold, the thermal switch 50 bends to the first orientation, and as the thermal switch 50 bends, the first switch terminal 53 moves away from the first heater terminal 1311, electrically isolating the connection between the first switch terminal 53 and the first heater terminal 1311.

The specific embodiments or other embodiments of the present disclosure described above are not mutually exclusive or distinct. The structure or function of any specific element or all elements of the embodiments of the present disclosure described above may be combined with other elements or combined with each other.

For example, configuration A described in one embodiment of this disclosure and drawings and configuration B described in another embodiment of this disclosure and drawings can be combined with each other. In other words, even if a combination between configurations is not directly described, the combination is possible unless it is described that the combination is not possible.

While the embodiments have been described above in accordance with a number of exemplary embodiments, it should be understood by those skilled in the art that many other variations and embodiments are possible within the scope of the principles of the present disclosure. More particularly, various modifications and variations are possible in the components and/or arrangements of the subject combinations within the scope of this disclosure, the drawings, and the appended claims. In addition to the modifications and variations of the components and/or arrangements, other uses will also be apparent to those skilled in the art.

Claims (9)

Housing and
a heater for heating the aerosol generating material;
a battery for powering the heater;
a temperature switch for switching an electrical connection between the heater and the battery;
The temperature switch is
a first switch terminal positioned to be electrically connected to a first heater terminal of the heater;
a second switch terminal positioned to be electrically connected to the first battery terminal of the battery;
When the thermal switch is heated above a first temperature, the thermal switch bends in one direction;
an aerosol generating device in which, after the temperature switch is bent in the one direction, the first switch terminal is separated from the first heater terminal, and the connection between the first switch terminal and the first heater terminal is electrically separated, thereby electrically separating the heater and the battery; and the electrically separated state between the heater and the battery is maintained even when the temperature of the temperature switch drops below the first temperature . The aerosol generating device of claim 1, wherein the first temperature is higher than the vaporization temperature of the aerosol generating material. The temperature switch is
a first plate including a first metal and extending in a direction from the first battery terminal toward the first heater terminal;
a second plate including a second metal and having one surface in contact with one surface of the first plate;
The aerosol generating device according to claim 1 , wherein the thermal expansion coefficient of the first metal is different from the thermal expansion coefficient of the second metal. further comprising a fuse having a first end and a second end;
The heater is
a coil having one end connected to the first heater terminal;
a second heater terminal connected to the other end of the coil,
the battery includes a second battery terminal;
The aerosol generating device according to claim 3 , wherein a first end of the fuse is connected to the second heater terminal and a second end of the fuse is connected to the second battery terminal. the heater further includes a third heater terminal electrically connected to the second heater terminal and disposed adjacent to the first switch terminal;
The thermal expansion coefficient of the first metal is greater than the thermal expansion coefficient of the second metal;
The fuse electrically opens when a current greater than or equal to the breaking current flows,
The aerosol generating device of claim 4, wherein when the temperature switch is heated above the first temperature, the temperature switch bends in one direction, causing the first switch terminal to electrically contact the third heater terminal and be electrically connected to the third heater terminal, and a current greater than the cut-off current flows through the fuse . Further comprising a protective resistor;
The aerosol generating device according to claim 5 , wherein the fuse and the protective resistor are connected in series between the second heater terminal and the second battery terminal. the thermal expansion coefficient of the first metal is smaller than the thermal expansion coefficient of the second metal;
The aerosol generating device according to claim 3 , wherein a first adhesive portion is provided on at least a part of the other surface of the first plate. the housing includes a second adhesive portion on one surface disposed adjacent to the other surface of the first plate;
8. The aerosol generating device according to claim 7, wherein when the temperature switch is heated to or above the first temperature, the temperature switch bends in the direction of the second adhesive portion, thereby bringing the first adhesive portion and the second adhesive portion into contact with each other. a heater for heating the aerosol generating material;
a battery that supplies power to the heater to heat the aerosol-forming material; and
a temperature switch for switching an electrical connection between the heater and the battery;
a housing containing the heater, the battery, and the temperature switch;
The temperature switch is
a first switch terminal electrically connected to a first heater terminal of the heater when the thermal switch is in a first orientation;
a second switch terminal positioned to be electrically connected to a first battery terminal of the battery when the thermal switch is in the first orientation;
the thermal switch bends to the first orientation state when the thermal switch is heated above a temperature threshold;
When the temperature switch bends, the first switch terminal separates from the first heater terminal, and the connection between the first switch terminal and the first heater terminal is electrically separated, the electrical connection between the heater and the battery is separated, and the electrical connection between the heater and the battery is maintained in a separated state even when the temperature of the temperature switch no longer exceeds the temperature threshold .